From 52af2fceb33a6795ec4de433d268fe4cebe9f82d Mon Sep 17 00:00:00 2001
From: aoright <102943475+aoright@users.noreply.github.com>
Date: Wed, 19 Aug 2026 16:06:53 +0800
Subject: [PATCH] test: add unit tests for runCmd and fix typo in package doc

Signed-off-by: aoright <102943475+aoright@users.noreply.github.com>
---
 browser.go      |  2 +-
 browser_test.go | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 1 deletion(-)
 create mode 100644 browser_test.go

diff --git a/browser.go b/browser.go
index d7969d7..dc6fca1 100644
--- a/browser.go
+++ b/browser.go
@@ -1,6 +1,6 @@
 // Package browser provides helpers to open files, readers, and urls in a browser window.
 //
-// The choice of which browser is started is entirely client dependant.
+// The choice of which browser is started is entirely client dependent.
 package browser
 
 import (
diff --git a/browser_test.go b/browser_test.go
new file mode 100644
index 0000000..a6e5ec9
--- /dev/null
+++ b/browser_test.go
@@ -0,0 +1,33 @@
+package browser
+
+import (
+	"bytes"
+	"os"
+	"strings"
+	"testing"
+)
+
+func TestRunCmd(t *testing.T) {
+	var stdout, stderr bytes.Buffer
+	Stdout = &stdout
+	Stderr = &stderr
+	defer func() {
+		Stdout = os.Stdout
+		Stderr = os.Stderr
+	}()
+
+	err := runCmd("echo", "hello", "world")
+	if err != nil {
+		t.Fatalf("runCmd failed: %v", err)
+	}
+	if !strings.Contains(stdout.String(), "hello world") {
+		t.Errorf("stdout = %q, expected to contain %q", stdout.String(), "hello world")
+	}
+}
+
+func TestRunCmdError(t *testing.T) {
+	err := runCmd("nonexistent-command-xyz-12345")
+	if err == nil {
+		t.Error("expected error for nonexistent command, got nil")
+	}
+}